I did make a mistake.
original
IF CRIT HIGHER 100% DEAL EXTRA DOUBLE DAMAGE
IF CRIT is HIGHER, DOUBLE DAMAGE * 2 (I assume this is what the effect is doing. "Extra" is very vague as to how much more damage.)
It should be.
IF CRIT is HIGHER than 100%, DAMAGE * 2 (I assume this is what the effect is doing. "Extra double damage = DAMAGE * 2")